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| 型号： | MAX5981AETE+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/16页 |
| 文件大小： | 1328K |
| 描述： | IC CTRLR PD IEEE 802.3AF 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 以太网供电控制器 PD 开关（PoE） |
| 应用： | 供电设备（PSE） |
| 内部开关： | 是 |
| 电流限制： | 720mA 至 880mA |
| 电源电压： | 31 V ~ 60 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-WQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（5x5） |
| 包装： | 带卷 (TR) |
IEEE 802.3af/at-Compliant, Powered Device Interface
Controllers with Integrated Power MOSFET
8 ______________________________________________________________________________________
Pin Description (continued)
PIN
NAME
FUNCTION
11
2EC
2-Event Classification Detect or Wall Adapter Detect Output. A 1.5mA current sink is enabled at 2EC
when a Type 2 PSE or a wall adapter is detected. When powered by a Type 2 PSE, the 2EC current
sink is enabled after the isolation MOSFET is fully on until V
IN
drops below the UVLO threshold. 2EC is
latched when powered by a Type 2 PSE until V
IN
drops below the reset threshold. 2EC also asserts
when a wall adapter supply, typically greater than 9V, is applied between WAD and RTN. 2EC is not
latched if asserted by WAD. The 2EC current sink is turned off when the device is in sleep mode.
12
CLS
Classification Resistor Input. Connect a resistor (R
CLS
) from CLS to V
SS
to set the desired classification
current. See the classification current specifications in the Electrical Characteristics table to find the resistor
value for a particular PD classification.
13
LED
LED Driver Output. During sleep mode, LED sources a periodic current (I
LED
). The amplitude of I
LED
is
set by R
SL
according to the formula I
LED
(in A) = 645.75/(R
SL
+ 1200).
14
SL
Sleep Mode Enable Input. A falling edge on SL brings the device into sleep mode (V
SL
must drop below
0.75V). An external resistor (R
SL
) connected between SL and V
SS
sets the LED current (I
LED
).
15
WK
Wake Mode Enable Input. WK has an internal 2.5kI pullup resistor to the internal 5V bias rail. A falling
edge on WK brings the device out of sleep mode and into the normal operating mode (wake mode).
16
ULP
Ultra-Low-Power Enable Input (in Sleep Mode). ULP has an internal 50kI pullup resistor to the internal
5V bias rail. A falling edge on SL while ULP is asserted low enables ultra-low-power mode. When ultra-
low-power mode is enabled, the power consumption of the device is reduced even lower than normal
sleep while still supporting MPS.
EP
Exposed Pad. Do not use EP as an electrical connection to V
SS
. EP is internally connected to V
SS
through a resistive path and must be connected to V
SS
externally. To optimize power dissipation, solder
the exposed pad to a large copper power plane.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX5981AEVKIT# | 制造商:Maxim Integrated Products 功能描述:EVKIT FOR POWERED DEVICE INTERFACE CONTROLLERS WITH INTEGRAT - Boxed Product (Development Kits) 制造商:Maxim Integrated Products 功能描述:KIT EVAL INTERFACE CONTROLLER |
| MAX5981BETE+ | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5981BETE+T | 功能描述:热插拔功率分布 IEEE 802.3af/at PDIC Controller RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5982AETE+ | 功能描述:热插拔功率分布 PDIC, up to 70W RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| MAX5982AETE+T | 功能描述:热插拔功率分布 PDIC, up to 70W RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
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